The westbound ramp from the Youngmann Memorial Highway to the inbound Niagara Thruway in the Town of Tonawanda will be closed for about two days starting at 8 p.m. Friday, as state highway workers continue bridge maintenance on the span, the state Department of Transportation announced.

Officials said a posted detour will direct traffic to proceed north on Interstate 190 to Exit 17, which is River Road. Detoured traffic will then proceed to Route 324 and enter the southbound Niagara Thruway from Route 324.